Men and boys undergarment



FIG. 1 is a front elevation of men and boys undergarment showing my new design;

FIG. 2 is a rear elevation thereof;

FIG. 3 is a side elevation view thereof; and

FIG. 4 is a sectional view taken along line 4--4 in FIG. 3. 

The ornamental design for men and boys undergarment, as shown and described. 